Are there other polyhedra that can do this? If we want each month to be on a separate face, then we need a geometric solid with 12 faces. We can offer the reader another polyhedron. It is a Rhombic dodecahedron. He undeservedly receives much less attention than the dodecahedron. Remembering how unusual (not the template) the past 2020 was, we can assume that 2021 is also preparing surprises for us. Of course, I really want these to be pleasant surprises. A model consisting of 12 rhombuses with the ratio of the diagonals of the rhombus in the proportions of the golden ratio 1 to 1.618. Here it is! A one-of-a-kind 3D 2022 calendar perfect for your desk, or as gifts to share with creative friends!

I found it easier to assemble the 2 halves, but leave a couple of the tabs loose (for example, the August & September tab), then glue the 2 halves together, finish with gluing the last 1 or 2 tabs. In case you are interested, this dodecahedron is a Platonic solid, with 12 pentagons as faces, which gives us 12 months! 🙂 Helpful tip: Therefore, in addition to the mathematically accurate version of the polyhedron - rhombic dodecahedron, we will make models of non-standard shape:Cut along the outer lines, score around each pentagon shape. Gently fold along each scoreline. Step 2: For work, we need a polyhedron shape net. Let's make a polyhedron from a single shape net that can be placed on an A4 sheet. The fact that a year consists of 12 months is no secret to anyone. Since then, people have grouped 12 months into calendars in a variety of ways. You may have come across a polyhedron calendar before. In the overwhelming majority of cases, the dodecahedron is used as the basic geometric figure. A geometric solid consisting of 12 regular pentagons. The reason is simple - the dodecahedron has 12 faces, which means that one month can be applied to each face.